package com.ylfstu.modifier;

public class A {
    public int n1 = 100;
    protected int n2 = 200;
    int n3 = 300;
    private int n4 = 400;

    public void m1() {
        System.out.println("n1=" + n1 + "n2=" + n2 + "n3=" + n3 + "n4=" + n4);
    }

    protected void m2() {
    }

    protected void m3() {
    }

    protected void m4() {
    }
}
